Answers

Add 90/9 and 7/81

1^st number: 10 0/9, 2^nd number: 7/81

90/9 + 7/81 is 817/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 81 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 9 × 9 = 81,
   90/9 = 90 × 9/9 × 9 = 810/81
3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
   7/81 = 7 × 1/81 × 1 = 7/81
4. Add the two like fractions:
   810/81 + 7/81 = 810 + 7/81 = 817/81
5. So, 90/9 + 7/81 = 817/81
   In mixed form: 107/81

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁹⁰/₉+¹⁴/₈₁ ⁹⁰/₁₈+⁷/₈₁ ⁹⁰/₉+²¹/₈₁ ⁹⁰/₂₇+⁷/₈₁ ⁹⁰/₉+³⁵/₈₁ ⁹⁰/₄₅+⁷/₈₁ ⁹⁰/₉+⁴⁹/₈₁ ⁹⁰/₆₃+⁷/₈₁

Add Fractions Calculator